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Patented'Apr. 1, 1884.

we H% (NoModeL) r J BIRKENHEAD.

SPINNING FRAME SPINDLE AND BO'LSTER. V

Fig.1.

Pnens. Phgtv-lllhaghpher. wan-mm. n.0,

; UNITED STATES PATENT, Orricn.

QQETOHNBIRKENHEAD, or MANSFIELD, MASSACHUSETTS.

SPINNING-FRAME SPINDLE AND ITSBOLSTER.

SPECIFICATION forming part of Letters Patent No. 295,899, dated April 1,1884-.

Application filed May 15, use. (No model.)

To all whom it. concernr C Be it known that 1, JOHN BIRKENHEAD, ofMansfield,in the county of Bristol, of the Commonwealth ofMassachusetts, have invented a new and .useful" Improvement in SpinningFrame Spindles. and their. Bolsters; and I do hereby declare the same tobe described in the. following specification and represented in theaccompanying drawings, of which- Figure 1 is a front elevation, and Fig.2 a vertical and transversesection, of a spindle, a bolster-rail, andbolster provided with myinvention,the nature of which is duly set forthin the claims hereinafter presented; also, a bobbin as applied to thespindle. Fig.13 is a vertical section of a bolster provided with stationary instead of removable bearings. Such figure shows the spiralgroove in the bore of such bolster. The groove is also representedinQFig. 2, wherein it appears as in the bore of the bolster and in thatof the removable bearings thereof. Fig. 4 is a horizontal section ofthebolster and its upper removable bearing sleeve on the line as m, Fig.2. p

The bolster for the spindle extends up through and both above and belowits sustaining-rail, and projectswithin an oil cup or reservoir fixed tothe spindle at its foot, and combined or being in one piece with. thewhirl. In the whirlj is a mouth'or passage leading from the top of thesaid whirl into the oil cup or reservoir below the whirl. The whirl andoil-cup are concentric with the spindle and the part of the bolsterextending down within them. The boreof the bolster and thespindle-bearings within said bolsters are grooved spirally from the footto the top of the bolster in such manner that while the spindle may bein revolution for spinning the yarn oil shall be caused to flow. fromthe oil-cup upward through the bolster andthe spindle-bearings to thetop of the bolster. The spindle at its foot does not rest and turn inany step, but at the top of the bolster such spindle is provided with acollar flange or hearing to rest directly on the said top, oruponthat'of a removable metallic sleeve or upper spindlebearing insertedin the bolster. Furthermore, the said spindle collar flange or hearing,by which the spindle is kept from dropping downward in the bolster, isformed with'an annular lip to extend from it into an annular groove 'orchamber made inthe bolster at its top. This annular groove is tointercept any oil that may escape between the top of the bolster and thespindle collar or flange resting thereon. The annular lip serves todeflect such oil into the said groove or chamber, and to keep it frombeing discharged over the chamber and bolster by centrifugal force whilethe spindle may be in revolution. At the upper part of the oilcup, andwithin the whirl, there is an enlargement or an annular groove orchamber provided at top with an annular lip or flange, which extendsdown within such enlargement or groove, and with it serves to preventoil, while the spindle and cup and whirl may be in rapid revolution,from beingthrown out of the cup.

In the drawings, A denotes the spindle; B, thebolster, and O thebolster-supporting rail, the bolster being held in the rail by aset-screw or other proper means. D is the oil cup or reservoir, and Ethe whirl. F is the spindlesustaining flange collar,or uppermostbearing,

it resting on the top of the bolster or that of a brass bearing-sleeve,G, surrounding the spindle andarranged within the bolst'erconcentrically. Another such sleeve is shown at H as inserted in thebolster at its lower part. Each sleeve may be encompassed with yieldingpacking or cloth sleeve I. The bolster, however, can be constructedwithout the re movable sleeves G and H, but with stationaryspindle-bearings, as represented at G and H in Fig. 3.

The enlargement or annular chamber in th whirl and ,oil-cup is shown inFig. 2 at a, the mouth or passage at a, and its annular lip or flange atb. The spiral groove in the bolster and the spindle-bearings of its boreis represented at 0. Instead of forming such groove in the bolster andits spindlebearing, it may be made in and around the spindle itself; butit is better to have it in the bolster and the said bearings.

Theannular chamber in the top of the bolster is shown at d, the lipprojecting down into it from the flange collar, or uppermost bear ing,F, being represented at 6.

Oil for supplying the cup at the foot of the spindle is to be pouredinto the mouth formed in the whirl.

When the spindle may be in rapid revolution by a,band applied to itswhirl, the oil will be forced or drawn from the oil-cup upward throughthe bolster to the bearing-flange of the spindle, and will lubricate thebearingsurfaces of the spindle and bolster.

I claim- 1. The bolster having the spindle collar flange or bearing andthe surrounding oil-intercepting chamber in its upper part, as setforth, in combination with the, spindle extended down through thebolster, and provided not only with the flange orcollar to rest on andencompass the aforesaid bearing, but with a combined whirl and oil-cupadapted to the said spindle at its lower part, having a mouth or passageopening into the said cup, and arranged with the bolster, asrepresented, the bore of the bolster having a spiral groove, as and forthe purpose explained.

2. The bolster provided with the separate bearing-sleeves arranged initems represented,

in combination with the spindle extending through and above suchsleeves, and having not only the flange or collar to rest and revolve onthe top of the upper of such sleeves,

but the combined whirl amd oil-cup adapted the said bearing-sleeves, andhaving not only the flange or collar to rest and revolve on the top ofthe upper of such bearing-sleeves, but the combined whirl and oil-cupadapted to it the said spindle, and arranged with the bolster, all beingsubstantially as represented, J OHN BIRKENHEAD. Witnesses:

R. H. EDDY, E. B. PRATT.

